CER0644A

1797.5 MHz Duplexer

Document No. 008-0256-0

Page 1 of 2

Rev. X4VH

- CTS Electronic Components - www.ctscorp.com – 4800 Alameda Blvd NE - Albuquerque, NM 87113 -

Features

• Low Insertion Loss

• Low Ripple

• Excellent Rejection and Isolation

Description

Surface mount, silver (Ag) coated ceramic

duplexer. Developed for use in 1770 MHz

Infrastructure Applications.

Weight: TBD grams typical

Material: Filter is composed of a ceramic

block plated with Ag and a shield made of

Sn plated steel.

Filter complies with RoHS standards.

Note: Supplier shall test each filter to the critical electrical specifications of the above table. Any subsequent audits may deviate from in value due to measurement

repeatability among different test systems. Such deviations shall not exceed the following limits:

Specification Allowance

Insertion Loss

0.1 dB

Return Loss

1.0 dB

Stopbands

1.0 dB

Electrical Specifications

•“This product is covered by one or more of the following U.S. and foreign patents including: US 4,692,726;US 4,742,562; US 4,800,348;US 4,829,274;US 5,146,193;EP 0573597;DE 0573597;FR 0573597;JP 508149/92;KR 142171;US 5,162,760;US

5,218,329;US 5,250,916;US 5,327,109;US 5,488,335;CA 2114029;FR 9306297;GB 2273393;JP 3205337;KR 115113;CN 93106228.4;US 5,512,866;EP 0706719;DE 0706719;FR 0706719;GB 0706719;CN 95190359.4;US 5,602,518;US

5,721,520;US 5,745,018;EP 0910875;DE 0910875;DK 0910875;FR 0910875;GB 0910875;IE 0910875;JP 505182/98;KR 10-323013;US 5,994,978;US 6,462,629;CN 00810420.4;US 6,559,735;US 6,650,202;US 6,834,429.Other US and foreign

patents pending.

•CTS Corporation 2006 reserves all copyrights in the layout, design and configuration of the patterns on this product.”

Revision B - Origin Date: September 12, 2009 – Revision Date: July 27, 2011

Parameter

Frequency

MHz

Typical

@ 25ºC

Specification

@ 25ºC

Spec over

-40ºC to +85ºC

Low Band Response

Passband Iloss

1745 - 1755

-2.30

-2.40

-2.50

Passband Ripple

1745 - 1755

0.90

1.40

1.50

Passband Return Loss @ Ant

1745 - 1755

-13.00

-12.00

-12.00

Passband Return Loss @ Low Band

1745 - 1755

-13.00

-12.00

-12.00

Attenuation

1840 - 1850

-60.00

-55.00

-55.00

3490 - 3510

-11.00

-10.00

-10.00

High Band Response

Passband Iloss

1840 - 1850

-2.30

-2.40

-2.50

Passband Ripple

1840 - 1850

1.00

1.40

1.50

Passband Return Loss @ Ant

1840 - 1850

-13.00

-12.00

-12.00

Passband Return Loss @ High Band

1840 - 1850

-13.00

-12.00

-12.00

Attenuation

1745 - 1755

-60.00

-55.00

-55.00

3680 - 3700

-19.00

-15.00

-15.00

Isolation

Rejection @ Low Band

1745 - 1755

-61.00

-60.00

-60.00

Rejection @ midpoint

1755 - 1840

-51.00

-50.00

-50.00

Rejection @ High Band

1840 - 1850

-61.00

-60.00

-60.00

Power into any port

3 Watt max